Year % (cumulative) 2005 2.10417008399963 2006 3.52049994468689 2007 3.23870253562927 2008 3.65621995925903 2009 4.50910997390747 2010 4.73928022384644 2011 4.57596015930176 2012 4.91368007659912 2013 5.22017002105713 2014 6.08884000778198 2015 6.03219413757324 2016 27.7592830657959 2017 6.16782999038696 2018 2.65594005584717 2019 3.66774988174438 2021 7.08136034011841